That is you, specifically. Not everyone will see it that way.
Efficiency always matters. Even on desktops. Also better efficiency=lower temps=lower noise and more compact computer.
Better by how much? 14900K is within 5% of 7950X3D in performance (temperatures too but only in gaming), but consumes two or three times a much power while doing so (even in gaming). That <5% may be worth it to you, but for most people i reckon it is not.
As if that is even advantageous these days. Intel has already pushed it so far that there is no OC headroom left and modern boost algorithms mean that even if you OC manually you can never match those boost frequency's manually. This means that in gaming it will actually lose performance. Not to mention the fact that when stressed then Intel quickly reaches temperature limits that further limit overclocking.
From TPU's review:
First you say you like overclocking and then low maintenance. These two don't go together. The best low maintenance CPU is one that does not require overclocking and does not care about how fast your RAM speed is. And that is 7800X3D by far.
And later below your post you describe how you are messing with turning off e-cores to get the best gaming performance. Thereby contradicting your earlier statements. The same way a user could buy 7950X3D and turn off the CCD without the V-Cache. For gaming the 7800X3D requires none of that and is cheaper too.
Yes and intel is low effort with overclocking and turning off e-cores?
For gaming the 7800X3D is best by far and requires no overclocking, no thread directors and does not care about ram speeds. Not to mention the incredibly efficiency. It is the best option for most users.